225282481 has 2 divisors, whose sum is σ = 225282482. Its totient is φ = 225282480.

The previous prime is 225282467. The next prime is 225282509. The reversal of 225282481 is 184282522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222010000 + 3272481 = 14900^2 + 1809^2 .

It is a cyclic number.

It is not a de Polignac number, because 225282481 - 2¹³ = 225274289 is a prime.

It is a super-2 number, since 2×225282481² = 101504392491030722, which contains 22 as substring.

It is equal to p_12397480 and since 225282481 and 12397480 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (225283481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112641240 + 112641241.

It is an arithmetic number, because the mean of its divisors is an integer number (112641241).

Almost surely, 2^225282481 is an apocalyptic number.

It is an amenable number.

225282481 is a deficient number, since it is larger than the sum of its proper divisors (1).

225282481 is an equidigital number, since it uses as much as digits as its factorization.

225282481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 34.

The square root of 225282481 is about 15009.4130797976. The cubic root of 225282481 is about 608.4746274080.

The spelling of 225282481 in words is "two hundred twenty-five million, two hundred eighty-two thousand, four hundred eighty-one".